150
Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 6
Protective Trip and Warning Functions
Table 184 - Stall Trip Level (Parameter 250)
Jam Protection
A motor goes into a jam condition when a running motor begins to consume
current greater than50% of the motor’s nameplate rating. An example of this
condition could be an overloaded conveyor or jammed gear. These conditions
can result in the overheating of the motor and equipment damage. The E300
Electronic Overload Relay can monitor for this condition with its Jam Trip and
Warning function to detect for a rapid jam fault to minimize damage and loss of
production.
Jam Inhibit Time
Jam Inhibit Time (Parameter 251) allows you to inhibit a jam trip and warning
from occurring during the motor starting sequence. It is adjustable from 0…250 s.
Table
185
‐
Jam
Trip
Inhibit
Time
(Parameter
251)
Stall Trip Level (Parameter 250)
Default Value
600
Minimum Value
100
Maximum Value
600
Parameter Type
UINT
Size (Bytes)
2
Scaling Factor
1
Units
%FLA
IMPORTANT
Stall Protection is only enabled during the motor starting sequence. If the
maximum phase of load current falls below the programmed Stall Trip Level
before the Stall Enabled Time elapses, the E300 Electronic Overload Relay
disables Stall Protection until the next motor starting sequence.
IMPORTANT
The E300 Electronic Overload Relay considers a motor to have begun its
starting sequence if the maximum phase of motor current transitions from 0A
to approximately 30% of the minimum FLA setting of the device.
Default Value
10
Minimum Value
0
Maximum Value
250
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
1
Units
Seconds
Содержание Allen-Bradley E300
Страница 1: ...E300 Electronic Overload Relay Bul 193 592 User Manual...
Страница 124: ...124 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 4 System Operation and Configuration Notes...
Страница 128: ...128 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 5 Operating Modes...
Страница 292: ...292 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 6 Protective Trip and Warning Functions...
Страница 304: ...304 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 7 Commands Notes...
Страница 372: ...372 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 8 Metering and Diagnostics...
Страница 460: ...460 Rockwell Automation Publication 193 UM015D EN P February 2015 Appendix A Specifications Notes...
Страница 501: ...Rockwell Automation Publication 193 UM015D EN P February 2015 501 Parameter List AppendixB Notes...
Страница 502: ...502 Rockwell Automation Publication193 UM015D EN P November 2013 Appendix B Parameter List...
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